Electronic sewing machine

Details Electronic sewing machine Electronic sewing machine

1981-08-03

1983-09-13

Nerbun, Peter P.

Sewing

Work manipulating

Guides

D05B 302

Patent

active

044035608

ABSTRACT:
Disclosed is an electronic sewing machine for modifying a stitch pattern with stitch forming instrumentalities, including a first memory for storing stitch control data used to control said stitch forming instrumentalities, a plurality of pattern selecting switches selectively operable for producing a different pattern signal for addressing the first memory to sequentially read the stitch control data, a second memory for storing a selected number of pattern signals, each one of the selected number of pattern signals designating an initial address of the first memory, a counter for counting the total and ordinal number of the pattern signals stored in the second memory, and a calculating device for storing at least one calculation formula for selecting a predetermined variation rate, the calculating device being responsive to the total as well as ordinal numbers of the pattern signals to modify the stitch control data read from the first memory for controlling the stitch forming instrumentalities.

REFERENCES:
patent: 4142473 (1979-03-01), Itoh
patent: 4220101 (1980-09-01), Nanai et al.
patent: 4222339 (1980-09-01), Iwako
patent: 4282821 (1981-08-01), Watanabe et al.
patent: 4318359 (1982-03-01), Takayama et al.

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